Emerald Chronometer

Emerald Chronometer^® is an iPhone™ application that models high-end mechanical watches. These models contain many of the most complex "complications" found in real watches, plus refinements found nowhere else. All displays maintain the look and feel of real mechanical objects, but with the time and location accuracy of the iPhone.

"App Store Pick of the Week" in July 2008
Apple "Staff Favorite" in December 2008
"Absolutely the most beautiful graphical software application of any kind that I've ever seen."

Local, UTC time
Day/date/month/year indicators, using mechanical wheels
Chronograph (stopwatch) with split timer
Alarm clock and interval timer
Most watches with 1/5 sec or 1/10 sec precision
Synchronized with standard atomic clocks via NTP

Highly accurate data from 4000 BCE to 2800 CE
Rise and set times for the Sun, the Moon and the 5 classical planets including a unique face showing the rise and set times of all 5 classical planets plus the Sun and the Moon at once
The correct shape and orientation of the Moon in all phases but still using a mechanical display
Relative positions of the Sun, Moon, 6 planets and the constellations of the zodiac
Times of the solstices, equinoxes and apsides; position of the Earth's terminator
Eclipse predictor (lunar node indicators and separation indicator)
The correct shape and orientation of the Moon in all phases but still using a mechanical display
Relative positions of the Sun, Moon and the constellations of the zodiac
"Compass functions" show the elevation and azimuth of the Sun, the Moon and 5 planets; twilight times
User settable geographic location and timezone using an 80,000 city database
The Equation of Time, solar time and sidereal time

The following links describe Emerald Chronometer and its watches in more detail:

Emerald Chronometer

The Application

The Watches

Customer Support and FAQ

Where to buy

Emerald Chronometer copyright info